30122122122 has 24 divisors (see below), whose sum is σ = 66050921664. Its totient is φ = 9919734504.

The previous prime is 30122122103. The next prime is 30122122127. The reversal of 30122122122 is 22122122103.

30122122122 is a `hidden beast` number, since 301 + 221 + 22 + 122 = 666.

It is a super-2 number, since 2×30122122122² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30122122095 and 30122122104.

It is not an unprimeable number, because it can be changed into a prime (30122122127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10079538 + ... + 10082525.

It is an arithmetic number, because the mean of its divisors is an integer number (2752121736).

Almost surely, 2^30122122122 is an apocalyptic number.

30122122122 is an abundant number, since it is smaller than the sum of its proper divisors (35928799542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30122122122 is a wasteful number, since it uses less digits than its factorization.

30122122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20162154 (or 20162151 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 30122122122 its reverse (22122122103), we get a palindrome (52244244225).

The spelling of 30122122122 in words is "thirty billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".